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@REPLYADDR George-Andrei Iosif
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==========================================================================
Ubuntu Security Notice USN-6048-1
April 28, 2023

ZenLib vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

ZenLib could be made to crash if it received specially crafted
input.

Software Description:
- libzen: ZenLib C++ utility library -- development files

Details:

It was discovered that ZenLib doesn`t check the return value of a specific
operation before using it. An attacker could use a specially crafted input
to crash programs using the library.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
    libzen-dev                      0.4.37-1ubuntu0.20.04.1
    libzen0v5                       0.4.37-1ubuntu0.20.04.1

Ubuntu 18.04 LTS:
    libzen-dev                      0.4.37-1ubuntu0.18.04.1
    libzen0v5                       0.4.37-1ubuntu0.18.04.1

Ubuntu 16.04 ESM:
    libzen-dev                      0.4.32-1ubuntu0.16.04.1+esm1
    libzen0v5                       0.4.32-1ubuntu0.16.04.1+esm1

Ubuntu 14.04 ESM:
    libzen-dev                      0.4.29-1ubuntu0.1~esm1
    libzen0                         0.4.29-1ubuntu0.1~esm1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6048-1 
<https://ubuntu.com/security/notices/USN-6048-1>
    CVE-2020-36646

Package Information:
https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.20.04.1 
<https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.20.04.1>
https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.18.04.1 
<https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.18.04.1>
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